Kreg PRS3050 Twist-Loc Ring Set, 5-Piece Compatible with Kreg Precision Router Table Insert Plates PRS3034, PRS3036, PRS3038 Compatible with Kreg Precision Router Table Lift item #PRS3000 Includes 5 Level-Loc rings (3/4", 1-3/8", 1-5/8", 2-1/8" and Blank) Blank ring can be used to make a custom zero-clearance reducing ring Molded tray holds all five rings in the set, plus the three rings that